ADR522CW AE522SC AE522SC3 / AER522SCL3
ADR522HW AE522HS AE522HS3 / AER522HS3
OUTDOOR UNIT
0.8180.225.0
SPLIT SYSTEM AIR CONDITIONER
INDOOR UNIT
OCTOBER 01
TECHNICAL & SERVICE MANUAL
®
TABLE OF CONTENTS
OPERATIONS.................................................................................................................PAGE.....1
ELECTRIC WIRING DIAGRAM.....................................................................................................31H
H
A
SPECIFICATIONS..........................................................................................................................9B
MAJOR COMPONENT SPECIFICATIONS................................................................ .................15C
DIMENSIONALE DATA.................................................................................................................21E
FUNCTION.....................................................................................................................................23F
REFRIGERANT FLOW DIAGRAM................................................................................................29G
TROUBLESHOOTING HEATING MODEL....................................................................................34I
SAME PARTS OF AIR CONDITIONER DO NOT OPERATE........................................................41L
AIR CONDITIONER OPERATES,BUT ABNORMALITIES OCCUR.............................................44M
TROUBLESHOOTING COOLING MODEL....................................................................................45N
SAME PARTS OF AIR CONDITIONER DO NOT OPERATE.......................................................52O
AIR CONDITIONER OPERATES,BUT ABNORMALITIES OCCUR............................................53P
CHECKING ELECTRICAL COMPONENTS.................................................................................56Q
OTHERS COMPONENTE SPECIFICATIONS..............................................................................15D
Function Temperature
Maximum 35°C DB / 22°C WB 46°C DB
Minimum 19°C DB / 14°C WB,5 19°C DB
Indoor air intake temp. Outdoor air intake temp.
Cooling
Maximum 27°C DB / 19°C WB 24°C DB / 18°C WB
Minimum – DB / – WB,5 –8°C DB / –9°C WBHeating
A OPERATING RANGE
1
Maximum 35°C BS / 22°C BU 50°C BS
Minimum 19°C BS / 14°C BU,5 -15°C BS
Referred to the systems - ADR522CW - AER522SCL3 only (3 phase and low ambient version)
INDOOR UNIT OUTDOOR UNIT
Indoor air Outdoor airFunction Temperature intake temp. intake temp.
Cooling
Shipping weight (approx.) kg 53 79
UNIT MODEL
Shipping volume m3 0.44 0.37
2
Data subject to change without notice.
NOTA. Rating conditions:Cooling: Outside air temp.: 35°C DB, indoor unit entering air temp.: 27°C DB / 19°C WBHeating: Outside air temp.: 7°C DB / 6°C WB, indoor unit entering air temp.: 20°C DB
Power source 220 / 230 / 240V - 1 - 50 Hz
W (Kcal/h) 6.300 (5.418)
B SPECIFICATIONS
1) UNIT SPECIFICATIONS
INDOOR UNITOUTDOOR UNIT
ADR522CW AE522SC
BTU/h 21.500
Air circulation (high - med - low) m3/h 1200
External static pressure (high speed) mm w.g. (Pa) 5 (49) at shipment - 10 (98) using the Booster cable
Moisture removal l/h 2.8
Voltage rating V 230
Available voltage range V 198 ÷ 264
Running ampere A 12.5
Power input W 2.600
Power factor % 90
Compressor locked rotor amperes A 70
C.O.P. W/W 2,42
Controls Microprocessor
Control unit Remote control
Temperature control I.C. thermostat
Timer ON/OFF 12 hours
Fan speed indoor / outdoor 3 and auto / 2 auto
Air filter Washable, easy access
Compressor Rotary (hermetic)
Refrigerant / ref. control / amount charged at ship g R22 / capillary tube / 2,5 g
Max. tubing length m (with factory R22 charge) 10
Required amount of additional refrigerant g/m 25
Max. allowable tubing length m (with R22 addition) 20
Accessory Booster cable
Higth mm 316 835
Width mm 1050 850
Depth mm 665 305
Net weigth kg 51 70
Operation soundIndoor Hi / Me / Lo (1 m) dB-A
Outdoor Hi / Lo (3 m) dB-A
38 / 33 / 29
55 / 52
Refrigerant tubediameter
Narrow tube mm (in.)
Wide tube mm (in.)
6,35 (1/4”)
15.88 (5/8”)
Limit of elevation difference mbetween the two units 7
Umidità asportata (alta velocità) l/h 0,9
PERFORMANCES COOLING
DIMENSIONS AND WEIGTH INDOOR UNIT OUTDOOR UNIT
Capacity
ELECTRICAL RATINGS
FEATURES
Shipping weight (approx.) kg 53 79
3
UNIT MODEL
Shipping volume m3 0.44 0.37
Data subject to change without notice.
NOTA. Rating conditions:Cooling: Outside air temp.: 35°C DB, indoor unit entering air temp.: 27°C DB / 19°C WBHeating: Outside air temp.: 7°C DB / 6°C WB, indoor unit entering air temp.: 20°C DB
Power source 400V - 3N - 50 Hz (4 wires)
W (Kcal/h) 6.000 (5.160)
1) UNIT SPECIFICATIONS
INDOOR UNITOUTDOOR UNIT
ADR522CW AE522SC3
BTU/h 20.400
Air circulation (high - med - low) m3/h 1200
External static pressure (high speed) mm w.g. (Pa) 5 (49) at shipment - 10 (98) using the Booster cable
Moisture removal l/h 2.8
Voltage rating V 400
Available voltage range V 342 ÷ 440
Running ampere A 4.6
Power input W 2.500
Power factor % 80
Compressor locked rotor amperes A 28
C.O.P. W/W 2.4
Controls Microprocessor
Control unit Remote control
Temperature control I.C. thermostat
Timer ON/OFF 12 hours
Fan speed indoor / outdoor 3 and auto / 2 auto
Air filter Washable, easy access
Compressor Rotary (hermetic)
Refrigerant / ref. control / amount charged at ship g R407c / capillary tube / 2.38 g
Max. tubing length m (with factory R22 charge) 10
Required amount of additional refrigerant g/m 25
Max. allowable tubing length m (with.R22.addition))...................20
Accessory Booster cable
Higth mm 316 835
Width mm 1050 850
Depth mm 665 305
Net weigth kg 51 70
Operation soundIndoor Hi / Me / Lo (1 m) dB-A
Outdoor Hi / Lo (3 m) dB-A
38 / 33 / 29
51 / 44
Refrigerant tubediameter
Narrow tube mm (in.)
Wide tube mm (in.)
6,35 (1/4”)
15.88 (5/8”)
Limit of elevation difference mbetween the two units 7
Umidità asportata (alta velocità) l/h 0,9
PERFORMANCES COOLING
DIMENSIONS AND WEIGTH INDOOR UNIT OUTDOOR UNIT
Capacity
ELECTRICAL RATINGS
FEATURES
Shipping weight (approx.) kg 53 79
4
UNIT MODEL
Shipping volume m3 0,44 0,37
Data subject to change without notice.
NOTA. Rating conditions:Cooling: Outside air temp.: 35°C DB, indoor unit entering air temp.: 27°C DB / 19°C WBHeating: Outside air temp.: 7°C DB / 6°C WB, indoor unit entering air temp.: 20°C DB
Power source 400V - 3N - 50 Hz (4 wires)
W (Kcal/h) 6.150 (5,335)
1) UNIT SPECIFICATIONS
INDOOR UNITOUTDOOR UNIT
ADR522CWAER522SCL3
BTU/h 21.000
Air circulation (high - med - low) m3/h 1200
External static pressure (high speed) mm w.g. (Pa) 5 (49) at shipment - 10 (98) using the Booster cable
Moisture removal l/h 2,8
Voltage rating V 400
Available voltage range V 342 ÷ 440
Running ampere A 4.8
Power input W 2.800
Power factor % 85
Compressor locked rotor amperes A 28
C.O.P. W/W 2,2
Controls Microprocessor
Control unit Remote control
Temperature control I.C. thermostat
Timer ON/OFF 12 hours
Fan speed indoor / outdoor 3 and auto / 2 auto
Air filter Washable, easy access
Compressor Rotary (hermetic)
Refrigerant / ref. control / amount charged at ship g R407c / capillary tube / 2.410 g
Max. tubing length m (with factory R407c charge) 10
Required amount of additional refrigerant g/m 25
Max. allowable tubing length m ...(with.R407c.addition)....................30
Accessory Booster cable
Higth mm 316 835
Width mm 1.050 850
Depth mm 665 305
Net weigth kg 51 70
Operation soundIndoor Hi / Me / Lo (1 m) dB-A
Outdoor Hi / Lo (3 m) dB-A
38 / 33 / 29
55 / 52
Refrigerant tubediameter
Narrow tube mm (in.)
Wide tube mm (in.)
6,35 (1/4”)
15,88 (5/8”)
Limit of elevation difference mbetween the two units 7
Umidità asportata (alta velocità) l/h 0,9
PERFORMANCES COOLING
DIMENSIONS AND WEIGTH INDOOR UNIT OUTDOOR UNIT
Capacity
ELECTRICAL RATINGS
FEATURES
Shipping weight (approx.) kg 53 79
5
UNIT MODEL
Shipping volume m3 0,44 0,37
Data subject to change without notice.
NOTA. Rating conditions:Cooling: Outside air temp.: 35°C DB, indoor unit entering air temp.: 27°C DB / 19°C WBHeating: Outside air temp.: 7°C DB / 6°C WB, indoor unit entering air temp.: 20°C DB
Power source 220 / 230 / 240V - 1 - 50 Hz
W (Kcal/h) 6.100 (5246) 7.450 (6.407)
1) UNIT SPECIFICATIONS
INDOOR UNITOUTDOOR UNIT
ADR522HWAE522SH
BTU/h 20.800 25400
Air circulation (high - med - low) m3/h 1200
External static pressure (high speed) mm w.g. (Pa) 5 (49) at shipment - 10 (98) using the Booster cable
Moisture removal l/h 2,8
Voltage rating V 264
Available voltage range V 198 ÷ 264
Running ampere A 12 13.6
Power input W 2.650 2.970
Power factor % 96 95
Compressor locked rotor amperes A 70
C.O.P. W/W 2.3 2.5
Controls Microprocessor
Control unit Remote control
Temperature control I.C. thermostat
Timer ON/OFF 12 hours
Fan speed indoor / outdoor 3 and auto / 2 auto
Air filter Washable, easy access
Compressor Rotary (hermetic)
Refrigerant / ref. control / amount charged at ship g R22 / capillary tube / 2.28 g
Max. tubing length m (with factory R22 charge) 10
Required amount of additional refrigerant g/m 25
Max. allowable tubing length m ...(with.R22.addition).....................30
Accessory Booster cable
Higth mm 316 835
Width mm 1.050 850
Depth mm 665 305
Net weigth kg 51 70
Operation soundIndoor Hi / Me / Lo (1 m) dB-A
Outdoor Hi / Lo (3 m) dB-A
38 / 33 / 29
55 / 52
Refrigerant tubediameter
Narrow tube mm (in.)
Wide tube mm (in.)
6,35 (1/4”)
15,88 (5/8”)
Limit of elevation difference mbetween the two units 7
Umidità asportata (alta velocità) l/h 0,9
PERFORMANCES COOLING HEATING
DIMENSIONS AND WEIGTH INDOOR UNIT OUTDOOR UNIT
Capacity
ELECTRICAL RATINGS
FEATURES
Shipping weight (approx.) kg 53 79
UNIT MODEL
Shipping volume m3 0.44 0.37
6
Data subject to change without notice.
NOTA. Rating conditions:Cooling: Outside air temp.: 35°C DB, indoor unit entering air temp.: 27°C DB / 19°C WBHeating: Outside air temp.: 7°C DB / 6°C WB, indoor unit entering air temp.: 20°C DB
Power source 400V - 3N - 50 Hz (4 wires)
W (Kcal/h) 5.800 (4.988) 7.300 (6.278)
1) UNIT SPECIFICATIONS
INDOOR UNITOUTDOOR UNIT
ADR522HW AE522SH3
BTU/h 20.000 25.000
Air circulation (high - med - low) m3/h 1200
External static pressure (high speed) mm w.g. (Pa) 5 (49) at shipment - 10 (98) using the Booster cable
Moisture removal l/h 2.8 ----
Voltage rating V 400
Available voltage range V 342 ÷ 440
Running ampere A 4.5 4.8
Power input W 2.650 2.900
Power factor % 93 94
Compressor locked rotor amperes A 28
C.O.P. W/W 2,36 2,73
Controls Microprocessor
Control unit Remote control
Temperature control I.C. thermostat
Timer ON/OFF 12 hours
Fan speed indoor / outdoor 3 and auto / 2 auto
Air filter Washable, easy access
Compressor Rotary (hermetic)
Refrigerant / ref. control / amount charged at ship g R22 / capillary tube / 2,46 g
Max. tubing length m (with factory R22 charge) 10
Required amount of additional refrigerant g/m 25
Max. allowable tubing length m (with R22 addition) 20
Accessory Booster cable
Higth mm 316 835
Width mm 1050 850
Depth mm 665 305
Net weigth kg 51 70
Operation soundIndoor Hi / Me / Lo (1 m) dB-A
Outdoor Hi / Lo (3 m) dB-A
38 / 33 / 29
55 / 52
Refrigerant tubediameter
Narrow tube mm (in.)
Wide tube mm (in.)
6,35 (1/4”)
15.88 (5/8”)
Limit of elevation difference mbetween the two units 7
Umidità asportata (alta velocità) l/h 0,9
PERFORMANCES COOLING HEATING
DIMENSIONS AND WEIGTH INDOOR UNIT OUTDOOR UNIT
Capacity
ELECTRICAL RATINGS
FEATURES
Shipping weight (approx.) kg 53 79
UNIT MODEL
Shipping volume m3 0.44 0.37
7
Data subject to change without notice.
NOTA. Rating conditions:Cooling: Outside air temp.: 35°C DB, indoor unit entering air temp.: 27°C DB / 19°C WBHeating: Outside air temp.: 7°C DB / 6°C WB, indoor unit entering air temp.: 20°C DB
Power source 400V - 3N - 50 Hz (4 wires)
W (Kcal/h) 5.700 (4.902) 7.400 (6.364)
1) UNIT SPECIFICATIONS
INDOOR UNITOUTDOOR UNIT
ADR522HW AER522SH3
BTU/h 19.500 26.000
Air circulation (high - med - low) m3/h 1200
External static pressure (high speed) mm w.g. (Pa) 5 (49) at shipment - 10 (98) using the Booster cable
Moisture removal l/h 2.8 -----
Voltage rating V 400
Available voltage range V 342 ÷ 440
Running ampere A 4.8 5
Power input W 2.750 3.000
Power factor % 83 86
Compressor locked rotor amperes A 28
C.O.P. W/W 2.1 2.5
Controls Microprocessor
Control unit Remote control
Temperature control I.C. thermostat
Timer ON/OFF 12 hours
Fan speed indoor / outdoor 3 and auto / 2 auto
Air filter Washable, easy access
Compressor Rotary (hermetic)
Refrigerant / ref. control / amount charged at ship g R407c / capillary tube / 2,40 g
Max. tubing length m (with factory R407c charge) 10
Required amount of additional refrigerant g/m 25
Max. allowable tubing length m (with R407c addition) 20
Accessory Booster cable
Higth mm 316 835
Width mm 1050 850
Depth mm 665 305
Net weigth kg 51 70
Operation soundIndoor Hi / Me / Lo (1 m) dB-A
Outdoor Hi / Lo (3 m) dB-A
39/ 33 / 29
55/ 52
Refrigerant tubediameter
Narrow tube mm (in.)
Wide tube mm (in.)
6,35 (1/4”)
15.88 (5/8”)
Limit of elevation difference mbetween the two units 7
Umidità asportata (alta velocità) l/h 0,9
PERFORMANCES COOLING HEATING
DIMENSIONS AND WEIGTH INDOOR UNIT OUTDOOR UNIT
Capacity
ELECTRICAL RATINGS
FEATURES
Fase area m2 0.125
8
µF 5
VAC 440
Fin pitch mm 1.8
Voltage AC 230V - 50 Hz
Input 114.7 WRated
UNIT MODEL ADR522CW/ADR522HW
REMOTE CONTROL UNIT RCS-U186QH
CONTROLLER P.C.B. POW-U226QH
FAN Centrifugal
EXTERNAL FINISH
Open °C 130 ± 18
Close °C 179 ± 15
Coil Aluminum plate fin / Copper tube
d) INDOOR UNIT
Power source 220 / 230 / 240V -1 - 50 Hz
Controls Microprocessor
Number ... dia. / length mm 2 ... Ø 200 / L 230
Control circuit fuse 250V - 3A
Model ... Number K48415M01535 ... 1
Power source V 220 / 230 / 240-1-50 Hz
No. di poli ... giri/min (230V-max) 4 ... 800
Nominal output W 65
Ω WHT - BRN : 181,1
ORG - VLT : 136,8
YEL - ORG : 151,4
BLK - YEL : 120,6
WHT - VLT : 112,7
VLT - PNK : 144,2
Coil resistance(Ambient temp. 20°C)
SAFETY DEVICES Internal type
Operating temp.
Model PC
Total head capacity 0.4 m / 0.6 l/m
Run capacitor
Rows 2
Insulated galvanized metal sheet
HEAT EXCHANGER
DRAIN PUMP
FAN MOTOR
C MAJOR COMPONENT SPECIFICATIONS
9
DATA SUBJECT TO CHANGE WITHOUT NOTICE.
Controller PCB POW–C226GH
Type Rotary (Hermetic)
Compressor model C–R221H5S 80687145B
Nominal output W 2,200
Compressor oil ... Amount cc 4GSD–T or SAY-56T ... 1,350
Coil resistance (Ambient temp. 25°C) Ω C – R : 0.78
C – S : 2.41
Type Internal protector External protector (OLR)
Safety Overload relay — OL–D24
devices Operating temp. Open °C Automatic opening 150 ± 5
Close °C Automatic reclosing 63 ± 11
Operating amp.(Ambient temp. 25°C) — Trip in 6 to 16 sec. at 59 A
Run capacitor µF 40.0
VAC 450
Crank case heater 240V 30W
Type Propeller
Number ... Dia. mm 1 ... ø 460
Fan motor model ... Number Smen 19TFB6064 ... 1
No. of poles ... rpm (230 V, High) 6 ... 836
Nominal output W 50
Coil resistance (Ambient temp. 20°C) Ω WHT – BRN : 99.5 ± 7%
WHT – YEL : 252.0 ± 7%
WHT – PNK : 63.2 ± 7%
Safety Type Thermal protector
devices Operating temp. Open °C 130 ± 5
Close Automatic reclosing
Run capacitor µF 5.0
VAC 440
Coil Aluminum plate fin / Copper tube
Rows 2
Fin pitch mm 2.0
Face area m2 0.610
External Finish Acrylic baked-on enamel finish
Hea
tE
xch.
Coi
lC
ompr
esso
rF
an &
Fan
Mot
or
Outdoor Unit AE522SH
Power sourceControl circuitCONTROLLER PCBCOMPRESSORTypeCompressor modelSourceNominal output WCompressor oil ... Amount cc
C - R ΩC - S ΩR - S Ω
Safety devices: Type Internal protector External protector Overload relay // HOE-10TB TH-7A
Open °C Automatic opening //Close °C Automatic reclosing //
Operating amp. (Ambient temp. 25°C) // 7AµF
VACCrank case heaterFAN AND FAN MOTORTypeNumber ... Dia. mmFan motor model ... NumberSourceNo. of poles ... rpm (220 V)Nominal output W
WHT - BRN ΩWHT - YEL Ω
Safety devices: TypeOpen °CClose
µFVAC
HEAT EXCH. COILCoilRowsFin pitch mmFace area m2
EXTERNAL FINISH Acrylic baked-on enamel finish
Data subject to change without notice.
380 - 400 V - 3N ~ 50 Hz220 - 240 V ~ 50 Hz
POW-C226GH
Rotary (Hermetic)
380 - 400 V - 3N ~ 50 Hz
//Run capacitor //240 V - 30 W
Propeller
Internal protector130 ± 8 Operating temp. Automatic reclosing
1 ... Ø460Smen 19TFB6064 ... 1220 - 240 V ~ 50 Hz
6 ... 84050
Run capacitor 5440
99,5252,063,2
Coil resistance (Ambient temp. 20°C)
Operating temp.
Coil resistance (Ambient temp. 25°C) 4,644,88
C-R223H8S-806-871-88B
2200SUNISO4CS ... 1350
4,97
Aluminum plate fin / Copper tube
0,61 22
10
WHT - PNK Ω
Outdoor Unit AE522SH3
Power sourceControl circuitCONTROLLER PCBCOMPRESSORTypeCompressor modelSourceNominal output WCompressor oil ... Amount cc
C - R ΩC - S ΩR - S Ω
Safety devices: Type Internal protector External protector Overload relay // HOE-10TB TH-7A
Open °C Automatic opening //Close °C Automatic reclosing //
Operating amp. (Ambient temp. 25°C) // 7AµF
VACCrank case heaterFAN AND FAN MOTORTypeNumber ... Dia. mmFan motor model ... NumberSourceNo. of poles ... rpm (220 V)Nominal output W
WHT - BRN ΩWHT - YEL Ω
Safety devices: TypeOpen °CClose
µFVAC
HEAT EXCH. COILCoilRowsFin pitch mmFace area m2
EXTERNAL FINISH Acrylic baked-on enamel finish
Data subject to change without notice.
380 - 400 V - 3N ~ 50 Hz220 - 240 V ~ 50 Hz
POW-C226GH
Rotary (Hermetic)
380 - 400 V - 3N ~ 50 Hz
//Run capacitor //240 V - 30 W
Propeller
Internal protector130 ± 8 Operating temp. Automatic reclosing
1 ... Ø460Smen 19TFB6064 ... 1220 - 240 V ~ 50 Hz
6 ... 84050
Run capacitor 5440
99,5252,063,2
Coil resistance (Ambient temp. 20°C)
Operating temp.
Coil resistance (Ambient temp. 25°C) 4,644,88
C-RN223H8A 80244088B
2200FV68S ... 1350
4,97
Aluminum plate fin / Copper tube
0,61 22
11
WHT - PNK Ω
Outdoor Unit AER522SH3
12
DATA SUBJECT TO CHANGE WITHOUT NOTICE.
Controller PCB —
Type Rotary (Hermetic)
Compressor model C–R221H5S 80687145B
Nominal output W 2,200
Compressor oil ... Amount cc 4GSD–T or SAY-56T ... 1,350
Coil resistance (Ambient temp. 25°C) Ω C – R : 0.78
C – S : 2.41
Type Internal protector External protector (OLR)
Safety Overload relay — OL–D24
devices Operating temp. Open °C Automatic opening 150 ± 5
Close °C Automatic reclosing 63 ± 10
Operating amp.(Ambient temp. 25°C) — Trip in 6 to 16 sec. at 57 A
Run capacitor µF 40.0
VAC 400
Crank case heater 240V 30W
Type Propeller
Number ... Dia. mm 1 ... ø 460
Fan motor model ... Number Smen 19TFB6064 ... 1
No. of poles ... rpm (230 V, High) 6 ... 840
Nominal output W 63
Coil resistance (Ambient temp. 20°C) Ω WHT – BRN : 99.5 ± 7%
WHT – YEL : 252.0 ± 7%
WHT – PNK : 63.2 ± 7%
Safety Type Thermal protector
devices Operating temp. Open °C 130 ± 5
Close Automatic reclosing
Run capacitor µF 5.0
VAC 440
Coil Aluminum plate fin / Copper tube
Rows 2
Fin pitch mm 2.0
Face area m2 0.610
External Finish Acrylic baked-on enamel finish
Hea
tE
xch.
Coi
lC
ompr
esso
rF
an &
Fan
Mot
or
Outdoor Unit AE522SC
DATA SUBJECT TO CHANGE WITHOUT NOTICE.
Part No. Johnson Control
Type Rotary (Hermetic)
Compressor model C-R223H8S - 806187188B
Source 380 – 400 V – 3N ~ 50 Hz
Nominal output W 2200
Compressor oil ... Amount cc SUNISO 4GSD-T ... 1350
Coil resistance (Ambient temp. 25°C) Ω C – R : 4.97
C – S : 4.64
R – S : 4.88
Type Internal protector External protector
SafetyOverload relay - HOE-10TB TH-7A
devices Operating temp.Open °C 125 ± 5 —
Close °C Automatic reclosing —
Operating amp.(Ambient temp. 25°C) - 7A
Run capacitorµF —
VAC —
Crank case heater 240V 30W
Type Propeller
Q´ty ... Dia. mm 1 ... ø460
Fan motor model ... Q´ty SMEN 19TFB6064 ... 1
Source 220 – 230 V ~ 50 Hz
No. of poles ... rpm (220 V, High) 6 ... 840
Nominal output W 50
Coil resistance (Ambient temp. 20°C) Ω WHT – BRN : 99.5 / WHT - YEL : 252
WHT – PNK : 63.2
Safety Type Internal type
devices Operating temp.Open °C 130 ± 5
Close Automatic reclosing
Run capacitor µF 5.0
VAC 400
Coil Aluminum plate fin / Copper tube
Rows 2
Fin pitch mm 2.0
Face area m2 0.610
External Finish Acrylic baked-on enamel finish
ControllerPCB
Hea
tE
xch.
Coi
lC
ompr
esso
rF
an &
Fan
Mot
or
13
Outdoor Unit AE522SC3
DATA SUBJECT TO CHANGE WITHOUT NOTICE.
Part No. Johnson Control
Type Rotary (Hermetic)
Compressor model C-RN223H8A 80244088B
Source 380 – 400 V – 3N ~ 50 Hz
Nominal output W 2200
Compressor oil ... Amount cc FV68S ... 1350
Coil resistance (Ambient temp. 25°C) Ω C – R : 4.97
C – S : 4.64
R – S : 4.88
Type Internal protector External protector
SafetyOverload relay HOE-10TB TH-7A —
devices Operating temp.Open °C Automatic opening —
Close °C Automatic reclosing —
Operating amp.(Ambient temp. 25°C) 7A —
Run capacitorµF —
VAC —
Crank case heater 240V 30W
Type Propeller
Q´ty ... Dia. mm 1 ... ø460
Fan motor model ... Q´ty SMEN 1STFB6064 ... 1
Source 220 – 230 V ~ 50 Hz
No. of poles ... rpm (220 V, High) 6 ... 840
Nominal output W 50
Coil resistance (Ambient temp. 20°C) Ω WHT – BRN : 99.5 / WHT - YEL : 252
WHT – PNK : 63.2
Safety Type Internal type
devices Operating temp.Open °C 130 ± 5
Close Automatic reclosing
Run capacitor µF 5.0
VAC 440
Coil Aluminum plate fin / Copper tube
Rows 2
Fin pitch mm 2.0
Face area m2 0.610
External Finish Acrylic baked-on enamel finish
ControllerPCB
Hea
tE
xch.
Coi
lC
ompr
esso
rF
an &
Fan
Mot
or
14
Outdoor Unit AER522SCL3
Magnetic Contactor (MG) HE-20FT31B
Coil rating AC 220/240V, 50Hz
Coil resistance Ω (at 25°C) 1,050 ± 15%
Contact rating (Main) AC 220-240V, 20A
Thermostat (Fan Speed Control 23S) YTB-S383
Switching temp. °C high LOW 28.5°C ± 1
low HIGH 31°C ± 1
Outdoor Unit AE522SC
Thermostat (Fan Speed Control 23S) MQT5S-27YZJ
Switching temp. °C high LOW 23.5°C +0–2.5
low HIGH 27.0°C +0–3
Contact rating AC 220V, 3A
Power Relay G7L-2A-TUB
Coil rating AC 200–240V, 50/60Hz
Coil resistance kΩ (at 23°C) ( 21 ± 15% )
Contact rating AC 220V, 25A
Outdoor Unit AE522SC
15
D OTHER COMPONENT SPECIFICATIONS
Electro Magnetic Contactor (MG) HOE-10TB TH-7A
Magnetic Contactor
Coil rating AC 220–240V, 50Hz / AC 240–260V, 60Hz
Coil resistance Ω (at 25°C) 1,260 ± 10%
Contact rating (Main) AC 440V, 8A
Thermal relay (Overcurrent relay)
Operating amperes 7A
Negative Phase Relay (47C) RDR-S400
Rating AC 415V, 3-phase 50Hz
Contact rating AC 400V, 1A
Operation Positive phase: ON
Negative phase: OFF
Thermostat (Fan Speed Control 23S) YTB-S383
Switching temp. °C high → LOW 28.5°C ± 1
low → HIGH 31°C ± 1
Outdoor Unit AE522SC3
16
Electro Magnetic Contactor (MG) HOE-10TB TH-7A
Magnetic Contactor
Coil rating AC 220–240V, 50Hz / AC 240–260V, 60Hz
Coil resistance Ω (at 25°C) 1,260 ± 10%
Contact rating (Main) AC 440V, 8A
Thermal relay (Overcurrent relay)
Operating amperes 7A
Negative Phase Relay (47C) RDR-S400
Rating AC 415V, 3-phase 50Hz
Contact rating AC 400V, 1A
Operation Positive phase: ON
Negative phase: OFF
Thermostat (Fan Speed Control 23S) YTB-S383
Switching temp. °C high → LOW 28.5°C ± 1
low → HIGH 31°C ± 1
Outdoor Unit AER522SCL3
17
Pressure Trasducer
Range Bar 14 to 24
Factory Setting Bar 16 ± 0.5
(Johnson C.) P35 AC
18
4-way Valve (20S) LB64012 (Coil), V26-110B (Valve)
Coil rating AC 220-240V, 50Hz, 6W
Coil resistance Ω (at 20°C) 1.640 ± 7%
Thermostat (Fan Speed Control 23S) YTB-S383
Switching temp. °C high LOW 28.5°C ± 1
low HIGH 31°C ± 1
Thermostat (Defrost thermo. 23D) TRS02-12MSR316
Operating temp. °C ON 12 ± 2
Diff. 8 deg. below
Magnetic Contactor (MG) HE-20FT31B
Coil rating AC 220/240 V,50Hz
Coil resistance Ω (at 25°C) 1.050 ± 15%
Contact rating (Main) AC 220V, 20A
Outdoor Unit AE522SH
Outdoor Unit AE522SH3
19
Electro Magnetic Contactor (MG) HOE-10TB TH-7A
Magnetic Contactor
Coil rating AC 220–240V, 50Hz / AC 240–260V, 60Hz
Coil resistance Ω (at 25°C) 1,260 ± 10%
Contact rating (Main) AC 440V, 8A
Thermal relay (Overcurrent relay)
Operating amperes 7A
Negative Phase Relay (47C) RDR-S400
Rating AC 415V, 3-phase 50Hz
Contact rating AC 400V, 1A
Operation Positive phase: ON
Negative phase: OFF
4-way Valve (20S) LB64012 (Coil), V26-110D (Valve)
Coil rating AC 220/240V, 50Hz, 6W
Coil resistance Ω (at 20°C) 1,740 ± 7%
Thermostat (Defrost thermo. 23D) TRS02-12MSR316
Operating temp. °C ON 12 ± 2
Diff. 8 deg. below
Thermostat (Fan Speed Control 23S) YTB-S383
Switching temp. °C high → LOW 28.5°C ± 1
low → HIGH 31°C ± 1
Operating press. setting OFF 25 ± 1 ON 20 ± 1.5
ACB - IB29High pressure switch (HPS)
Outdoor Unit AER522SH3
20
Electro Magnetic Contactor (MG) HOE-10TB TH-7A
Magnetic Contactor
Coil rating AC 220–240V, 50Hz / AC 240–260V, 60Hz
Coil resistance Ω (at 25°C) 1,260 ± 10%
Contact rating (Main) AC 440V, 8A
Thermal relay (Overcurrent relay)
Operating amperes 7A
Negative Phase Relay (47C) RDR-S400
Rating AC 415V, 3-phase 50Hz
Contact rating AC 400V, 1A
Operation Positive phase: ON
Negative phase: OFF
4-way Valve (20S) LB64012 (Coil), V26-110D (Valve)
Coil rating AC 220/240V, 50Hz, 6W
Coil resistance Ω (at 20°C) 1,740 ± 7%
Thermostat (Defrost thermo. 23D) TRS02-12MSR316
Operating temp. °C ON 12 ± 2
Diff. 8 deg. below
Thermostat (Fan Speed Control 23S) YTB-S383
Switching temp. °C high → LOW 28.5°C ± 1
low → HIGH 31°C ± 1
Operating press. setting OFF 25 ± 1 ON 20 ± 1.5
ACB - IB29High pressure switch (HPS)
21
E DIMENSIONAL DATA
1 2 3 4 5 6 7 8 9
LEG
EN
D
Dim
ensi
on: m
m
RE
MO
TE
CO
NT
RO
L U
NIT
2060
200
Ref
riger
ant l
iqui
d lin
e (N
arro
w tu
be -
ø 6
.35)
Ref
riger
ant g
as li
ne (
Wid
e tu
be -
ø 1
5.88
)
Dra
in c
onne
ctio
n (o
utsi
de d
iam
. 32)
Ele
ctric
al ju
nctio
n bo
x
Pow
er s
uppl
y en
try
Mou
ntin
g fo
r su
spen
tion
Duc
t con
nect
ion
for
disc
harg
e (ø
200
)
Duc
t con
nect
ion
for
suct
ion
Fre
sh a
ir in
take
(ø
150
)
22
Outdoor Unit
Wide tube service valve ø15.88 (5/8")
Narrow tube service valve ø6.35 (1/4")
86
88
155
57
7386
229
285
835
620130 100
20
20
325
850250250
560
6 – ø3.1 holes
Air intake
Air discharge
Unit : mm
23
NOTA
1) ROOM TEMPERATURE CONTROL
Cooling
• Room temperature control is obtained by cycling the compressor ON and OFF under control of the roomtemperature sensor in the remote control unit.
F FUNCTION
• The control circuit will not attempt to turn the compressor ON until the compressor has been OFF for atleast 3 minutes.To protect the compressor from stalling out when trying to start against the high side refrigerant pressure,the control circuit has a built-in automatic time delay to allow the internal pressure to equalize.
• As a protective measure, the control circuit switches the compressor OFF after 5 minutes or more ofcompressor operation.
• Thermo ON: When the room temperature is above T + 1°C (T°C is set temperature).Compressor ON.
• Thermo OFF: When the room temperature in equal to or below set temperature T°C.Compressor OFF.
MORE THAN5 MINUTES
THERMO OFF
MORE THAN3 MINUTES
THERMOON THERMO
OFFMORE THAN5 MINUTES 3 MINUTES 5 MINUTES
THERMOON THERMO
OFF
WITHIN3 MINUTES
WITHIN5 MINUTES
ONOFFONOFFON
ROOM TEMPERATURE
OFFON ONOFFON
SET SPEED (MANUAL)
SET T + 0,5 ϒCTEMPERATURE T ϒC
COMPRESSOR
OUTDOORFAN
INDOORFAN
24
Heating
• The control circuit will not attempt to turn the compressor ON until the compressor has been OFF for atleast 5 minutes. To protect the compressor from stalling out when trying to start against the high siderefrigerant pressure, the control circuit has a built-in automatic time delay to allow the internal pressure toequalize.
• As a protective measure, the control circuit switches the compressor OFF after 5 minutes or more ofcompressor operation.
• Thermo ON: when the room temperature is below T -1°C (T°C is set temperature).Compressor ON.
• Thermo OFF: when the room temperature is equal to or above set temperature T°C.Compressor OFF.
OFF
SET TEMP.
MORE THAN5 MINUTES
ROOM TEMP.
THERMOOFF
THERMOON
THERMOOFF
5 MINUTES
ON ON OFFOFF
OFFON ON OFFOFF
OFF LL SET SPEED LL SET SPEED LL
30 SECONDS 30 SECONDS
OFF ON OFF ON OFF ON
OFF ON
ON (REVERSING CYCLE)
T°CT-0.5°C
COMPRESSOR
OUTDOORFAN
INDOORFAN
STANDBY LAMP
INDOOR HEATEXCH. COILTEMP. 35°C
25°C
SOLENOID COIL(4-WAY VALVE)
OPERATIONBUTTON
L L = Low low speed COLD DRAFT PREVENTION
OFF
5 MINUTES
25
2) FREEZE PREVENTION (COOLING)
• This function prevents freezing of the indoor heat exchange coil.
• When the compressor has been running for 10 minutes or more and the temperature of the indoor heatexchange coil falls below –1°C, the control circuit stops the compressor for at least 6 minutes.
INDOORHEAT EXCH.COIL TEMP.
ON ON ON ON
SET SPEED SET SPEED
OFF OFF
AFTER6 MINUTES6 MINUTES
MORE THAN10 MINUTES
INDOORFAN
COMPRESSOR
–1°C
T +0.5°C T°C
ROOM TEMP.
THERMO OFF
THERMO ON
SETTEMP.
MORE THAN10 MINUTES
3) OVERLOAD PREVENTION (HEATING)
• This function prevents overheating of the indoor heat exchange coil.
For indoor units SAP-U R228EH only
• When the temperature of the indoor heat exchange coil rises above 59°C, and if the indoor fan is L (lowspeed), then the fan speed changes from L (low speed) to M (medium speed).
• When the temperature of the indoor heat exchange coil rises above 61°C, the outdoor fan stops.
INDOOR HEATEXCH. COILTEMP. °C
ON OFF ON
H o M o L H H, M M, L M
ON
61
59
52
49
OUTDOORFAN
INDOORFAN
COMPRESSOR
H = High speedM = Medium speedL = Low speed
26
For indoor units ADR522HW only
INDOOR HEATEXCH. COILTEMP. °C
H o M o L H H, M M, L M
ON
59
49
INDOORFAN
COMPRESSOR
H = High speedM = Medium speedL = Low speed
• When the temperature of the indoor heat exchange coil rises above 59°C, and if the indoor fan is L (lowspeed), then the fan speed changes from L (low speed) to M (medium speed).
27
YES
YES
YES
YES
YES
YES
YES
4) DEFROSTING OPERATION (Heating)
• When the capacity of the unit has been decreesed due to frosting up of the outdoor heat exchanger duringheating, the temperature drop gradient is detected by the microcomputer-controlled temperature sensingsystem, and defrosting operation is started.
DEFROSTING FLOWCHART
Compressor ON
Integrated operating time ofcompressor is longer than
3 hours
Integrated operating time ofcompressor is longer than
1.5 hours
Thermo OFF(Compressor OFF)
Temperature of indoor heatexchanger coil is lower than
53°C.
Thermo ON(Compressor ON)
Defrosting thermo in theoutdoor unit is OFF.
(Below 4°C)
Defrosting begins.
Cold-draft prevention.
Release of defrosting.
Temperature of outdoor heatexchange coil is higher than
12°C.
Defrosting time is over11.5 minutes.
Temperature of indoor heatexchanger coil is lower than
45°C
Temperature in indoor heatexchanger coil drops 0.8deg/6 min. or more and
repeats 3 times continuously.
Integrated operating time ofcompressor is more than
20 minutes.
Compressor keeps runningfor 5 minutes
A B C
NO
28
5) DEFROSTING MODE TIMING CHART
COMPRESSOR
32 SECONDS
OFF
MAX. 11 MINUTES 32 SECONDS
ON ON ON ONOFF
ON ONOFF
ON ONOFF
2 SECONDS
SET SPEED OFF SET SPEEDLL
OFF ON ON OFF
OUTDOORFAN
SOLENOID COIL(4-WAY VALVE)
INDOORFAN
STANDBY LAMP
INDOOR HEATEXCH. COILTEMP. 35°C
START OF DEFROSTING RELEASE OF DEFROSTING
RELEASE OFCOLD DRAFT PREVENTIONL L = Low low speed
2 SECONDS
6) OUTDOOR FAN SPEED CONTROL (COOLING)
• To optimize performance of the air conditioner, the outdoor fan speed is switched automatically accordingto the outdoor temperature.
• If the outdoor air temperature falls below 28.5°C, the fan speed switches to LOW.
• If the outdoor air temperature rises above 31.5°C for 5 minutes or longer, the fan speed switches to HIGH.
• This function does not become active in heating operation.
31,5
H HL
28,5
OUTDOOR AIRTEMPERATURE (°C)
OUTDOOR FANSPEED
H = High speedL = Low speed
29
G REFRIGERANT FLOW DIAGRAM
CompressorWide tubeservicevalveWide tube
O.D.ø15.88 mm(5/8 ")
NarrowtubeservicevalveNarrow tube
O.D.ø6.35 mm(1/4")
Eva
pora
tor
Capillary for liquid injection
Indoor Unit Outdoor Unit
Muffler
Capillary tube
Con
dens
er
Check port
Accumulator
Strainer
Indoor Unit ADR522CW Outdoor Unit AE522SC AE522SC3/AER522SCL3
Indoor Unit ADR522HW Outdoor Unit AE522SH AE522SH3/AER522SH3
30
3) For AER522SCL3 only (3 phase and low ambient version)
• When the outside ambient temperature decreases, the rotation speed of the outdoor fan is regulated bymeans of the outdoor heat-exchanger sensor to prevent liquid back.
• The rotation speed varies with indoor temperature conditions (Hatching area).
• The unit is protected against high pressure by means of the outside temperature sensor, and thus whenthe outside ambient temperature reaches 30 ° C respectively, the fan speed is forced to high.
10001000
800
600
400
200
0-10-10 -5 0 5 1010 15 20 25 30 35
RO
TA
TIO
N S
PE
ED
OF
FA
N (
rpm
)
CONDITIONS: ROOM TEMPERATURE 19,4°C DB / 13,9°C WB 220V - 50 HZ
OUTDOOR AMBIENT TEMPERATURE (°C)
900 rpm
31
1 2 4 5 6 7
1 1
11
11
11
11
11
11
11
11
11
11
11
11
22
22
22
22
22
2 2
22
22
22
22
22
33
33
3 344
44
44
55
66
66
778
899
55
55
1212
S SSS
BLK
WH
TG
RN
/YE
LB
RN
RE
DO
RG
YE
L
UN
IT
SU
PT
H
TH
1 (C
OIL
)
TH
2 (R
OO
M)
WH
TW
HT
BLK
BLK
WH
TW
HT
TR
PR
BO
DY
TH
ER
MO
12P F
MI
GR
YG
RY
WH
TV
LTO
RG
YE
LB
LKB
RN
PN
K
PNK
BR
NB
RN
BR
NB
LKB
LKY
EL
OR
GV
LT
GR
YG
RY
YE
LO
RG
VLTBLK
C1
GR
N/Y
EL
E
FM
I
BLK
BLK
BLK
BLK
LFS
GR
N/Y
EL
E
DP
BLK
BLK
BLU
WH
T
FS
DP
1D
P2
4 9 1 12 1 2
GRN/YEL
E
BLK
BR
N
235V
P
-O
19V
S-O
SE
C
1122
3 3445566
88GRYGRYWHTVLTORGYELBLKBRNPNK
1 1
7 7
99 GRYGRY 22
6 6
45 5
1 1
3 32 2
VLTORGYELBLK
BRN BRN
PN
K
GRN/YEL
1 12 2
1
4
12
9VLTORGYELBLKBRN
BRN
BLK
BLK
11
22
3 43 4
12
BLKBLKWHTGRN/YELORG 4
1 1
1 1
2 2
22
1122
GRN/YEL
BLKBLK
BLKBLK
BLKBLK
BLUWHT
1 122
112 2
12
1 1
12S S
12
1 1
5 5
1 122
S S
BLKBRN
RE
D
WHTWHT
BLKBLK
WHTWHT
TP1
RY
UNIT
SUP TH
BODYTHERMO
12P
FMI PR
PCB1
FS
DP1DP2
SEC
RE
MO
CO
N2
RE
MO
CO
N1
REMOTECONTROLSWITCH
GR
N/Y
EL
235V P-C
19VS-0
TR
DP
E
E
LFS
FMI
C1
TH1 (COIL)
TH2 (ROOM)
4
E
E
F ELECTRIC DIAGRAMS
Outdoor Unit ADR522CW
ADR522HW
Outdoor Unit AE522SH
32
AE522SH3 AER522SH3
Outdoor Unit AE522SC
33
AER522SCL3
1
2
4
L1
L3
L2
N
TP2
GR
N/Y
EL
FMOCM
GRY
GRY
GR
N/Y
EL
7U W
14VU W
MG
A
8GRY
S 13R T
B
YE
L
RE
D
WH
T
BLU
R ST
GRN/YELGRN/YEL
GRY
REDRED
REDGRY
WHTBLU
RE
D
BLU
47C
S
A
C
TR B
BLK
WHT
BRN
CC
OR
G
TH
ER
MO
C2
WH
TY
EL
BR
NP
NK
GR
Y
WH
TY
EL
BR
NP
NK
GR
Y
GRY
34
H TROUBLESHOOTING HEATING MODEL
1) CHECK BEFORE AND AFTER “TROUBLESHOOTING”
a) Check power supply wiring.
• WARNING:If the following troubleshooting must be done with power being supplied, be careful about anyuninsulated live part that can cause ELECTRIC SHOCK.
• Check that power supply wires are correctly connected to terminals:Single-phase system –No. 1 and No. 2 on the terminal plate in the outdoor unit.Three-phase system – A D R 5 2 2 H W / A E 5 2 2 S H 3 - A E R 5 2 2 S H 3
b) Check inter-unit wiring.
• Check that inter-unit wiring (both the power wiring and control wiring) is correctly connected to theindoor unit from the outdoor unit.
No. 8,9,10 and No. 11 on the terminal plate in the outdoor unit.
OUTDOOR INDOORUNIT UNIT
abcdefgh
INTER-UNITCONTROL WIRING
abcdefgh
POWER SUPPLY50 Hz - Single-phase220/230/240 V
GROUND
POWERSUPPLY
GROUND
INTER-UNITPOWER WIRING
ADR522HW / AE522SH
abydefgh
abydefgh
OUTDOOR INDOORUNIT UNIT
ADR522HW / AE522SH3-AER522SH3
abcdef
INTER-UNITCONTROL WIRING
POWER SUPPLY50 Hz - 3-phase 400V4 Wires
POWERSUPPLY
GROUND
INTER-UNITPOWER WIRING
L1
L2
L3
N
GROUND
35
(c) Check power supply
• Check that voltage is in specified range (± 10% of the rating).• Check that power is being supplied
(d) Check lead wires and connectors in indoor and outdoor units.
• Check that coating of lead wires is not damaged.• Check that lead wires and connectors are connected firmly.• Check that wiring is correct.
L1
L2
L3
N
400V400V
230 V400V
L
N
230V
Single-phase systems Three-phase systems
36
Air conditioner does not operate.
2) SYSTEMATIC CHART OF “TROUBLESHOOTING”
Circuit breaker trips (orfuse blows).
When circuit breaker isset to ON, it trips in afew moments.
Circuit breaker trips inseveral minutes afterturning air conditionerON.
Power is not supplied.
Check drain pump anddrain hose.
Function of compressorwinding protectionworks.
Indoor unit sensor aredefective.Open or short circuit.
Limit float switch hasoperated “OPEN”.
Check power supply.Neither indoor unit noroutdoor unit runs.
Measure insulationresistance of powersupply wires.
Check capacity of circuitbreaker. Meaureresistance of electricalcomponents.
Reposition the indoorunit.
Indoor unit installedupside - down.
37
3) AIR CONDITIONER DOES NOT OPERATE
(a) Circuit breaker trips (or fuse blows)• When circuit breaker is set to ON, it trips in a few moments. (Resetting is not possible).
• Measure insulation resistance there is a possibility of ground fault. If resistance value is 1MΩ or less,insulation is defective.
Circuitbreaker
Outdoorunit
12345678
Unitàesterna
xx345678
Unitàesterna
x xx x
x xx xx xx xx x
Indoorunit
12345678
Ground
Powersupply
Inter-unitcontrol wiring
a b c
d
ADR522HW / AE522SH
z
Inter-unitpower wiring
Circuitbreaker
Outdoorunit
12
z45678
Unitxxxx
Unitàesterna
x xx x
x xx xx xx xx x
Indoorunit
12345678Power supply
wiring
a b c
d
ADR522HW - AE522SH3-AER522SH3
L1
L2
L3
N
z z
123456
Ground
z
Inter-unitcontrol wiring
Inter-unitpower wiring
38
• Set circuit breaker to OFF.
➀ Remove power supply wiresfrom terminal plate in outdoorunit.
• Measure insulation resistance ofpower supply wires.
Do rewiring
Do rewiring.
➁ Remove inter-unit wires fromterminal plate in outdoor unit.
• Measure insulation resistance ofoutdoor unit.
Insulation of outdoorunit is defective.
Measure insulationresistance of electrical partsin outdoor unit.
Measure insulationresistance of electrical partsin indoor unit.
Insulation of indoor unitis defective.
➂ Remove inter-unit wires fromterminal plate in intdoor unit.
• Measure insulation resistance ofintdoor unit.
➃ Measure insulation resistance ofinter-unit wires.
OK
OK
YES
YES
39
(b) Circuit breaker trips in several minutes after turning air conditioner ON.
• There is a possibility of short circuit.
(c) Neither indoor unit nor outdoor unit runs (leds of remote control unit are light)
Check power supply.Is power being supplied to wallreceptacle?
Circuit breaker istripped.
Power failure.
Reset the breaker.
Wait for recovery orcontact power company.
Replace it with suitable one.(larger capacity).
NO
Outdoor unit AE522SHAE522SH3-AER522SH3 onlyMeasure coil resistance ofmagnetic contactor. (MG or52C)
In case of Heatingoperation:Measure resistance of 4-wayvalve’s winding. (20S or SC).
OK
NO
YES
OK
Measure resistance of outdoor fanmotor winding.
Measure resistance of outdoor fanmotor winding.
Check capacity of circuit breaker.Capacity of circuit breaker issuitable?
NO
Check is drain flow prevented?
YES
Check if the drain pump is working.Measure resistance of drain pumpmotor winding.
Replace drain pump.
Check function of limit float switch.Float in high position: open circuit.Float in down position: short circuit.(Normal condition)
YES
Check installation of indoor unit itis installed upside - down?
Replace limit float switch.
Check drain hose.YES
NO
NO
Reposition the indoor unit.YES
40
(d) Check fuse on PCB Ass’y in indoor unit
Check fuse on PCB Ass’y inindoor unit for continuity.
Measure resistance ofindoor fan motor winding.
Measure coil resistance of powerrelay or magnetic contactor inoutdoor unit.
Measure resistance of drainpump winding.
PCB Ass’y in indoor unit isdefective.
Measure resistance ofprimary winding oftransformer.
If fuse blows, there is a possibility of short circuit.
OKOK
OK
e) Check transformer in indoor unit
Check whether transformere isdetective.Measure resistance of primary andsecondary winding.
f) Check indoor fan motor protector
Wait for 30 minutes and then try to run.
Indoor fan motor internal protector trips.
Air conditioner starts running.
Air conditioner does not run again.
Check fan rotation. Turnfan gently once or twiceby hand.
Remove foreign matteror repair.
Check fan casing forforeign matter on inside.
Fan motor burnout orforeign matter in bearing.
Repair or replace.
Fan cannotbe turn ed
4) ONLY OUTDOOR UNIT DOES NOT RUN
a) Outdoor unit does not run when air conditioner is in following conditions.• During thermo OFF.• During freeze prevention (for at least 6 minutes).• During drain pump works (for at least 12 minutes).
b) PCB Ass’y in indoor unit is defective.
OK
41
Repair or repla-ce.
Fan motor burnout orforeign matter inbearing.
NO
NO
Replace capacitor.
Replace fan motor.
OK
Check fan motor capacitor.
Measure resistance of fan motorwinding.
OK
Check output of fan motor terminalson PCB Ass’y.
Fan cannotbe turnedCheck fan rotation. Turn fan gently
once or twice by hand.
1) ONLY INDOOR FAN DOES NOT RUN
Check fan casing forforeign matter on inside.
Remove foreignmatter or repair.
L SOME PARTS OF AIR CONDITIONER DO NOT OPERATE
Fan turnnormal
Repair or repla-ce.
Fan motor burnout orforeign matter inbearing.
OK
Measure the resistance of outdoorfan motor winding.
Check fan motor capacitor.
Fan cannotbe turned.Check fan rotation. Turn fan gently
once or twice by hand.
2) ONLY OUTDOOR FAN DOES NOT RUN
Check fan casing forforeign matter on inside.
Remove foreignmatter or repair.
Defrost controller (POW-C92 GH)is defective in outdoor unit.
42
3) ONLY COMPRESSOR DOES NOT RUN
a) Single phase systems 2 30V - 1 - 50 Hz
OK
YES
OK
NO
OK YES
NO
YES
YES
Refrigerant gas shortage.
Rotor may be locked up.
Temperature of compressoris abnormally high.
Either overload relay orinternal protector is working.(Either OLR or 49C).
Replace compressor.
Charge refrigerant gas(R22)
Check compressor motorcapacitor. (Either C1 or BC).
Check power supply voltage.Voltage is abnormally low.
Check compressor.There is a possibility oflocked rotor.
Measure resistance ofcompressor motor winding.
Outdoor unit AE522SHCheck continuity betweenterminals on the magneticcontactor (MG).
Contact power utility company tohave power voltage restored tonormal
90% or more ofrated voltage.
YES
43
b) Three-phase systems 400V - 3N - 50 Hz
Rewire power supply wires.Check negative phase relay (47C)to see if it has operated.
Check magnetic contactor. (MG)
Check thermal relay (51C) to see ifit has operated.
Check power supply voltage.Voltage is abnormally low.
Contact power utility company tohave power voltage restored tonormal
Check compressor.There is a possibility of lockedrotor.
NO90% or more ofrated voltage.
YES
YES
YES
O.K.
NO
Check compressor motor internalprotector. (49C)
Temperature of compressor isabnormally high.
Refrigerant gas shortage.
Compressor is defective.
YES
NO
Charge refrigerant gas.(R22 or R407C
44
POOR COOLING ORPOOR HEATING
Check installation posit ion ofremote control unit.Does cool or heat air from airconditioner reach position directly?
Is heating or cool ing load toolarge?
Change installation posit ion ofremote control unit.
Review heating or cooling loadestimate.
Charge refrigerant gas.
Open the valves fully.
Clean filter in the air intake grille.
Set the fan speed to either MEDIUMor HIGH.
Insulate wide and narrow tubesseparately.
Replace.
Replace.
4 way valve is defective.
Compressor is defective.
Service valves are not fully open.
Is fan speed set to LOW?
Refrigerant tubes between indoorand outdoor units are not insulated.
Air filter is clogged.
Measure temperatures ofsuction and discharge airof air conditioner.
Refrigerant gas shortage.
Possibil i ty ofgas shortage.
Chargerefrigerant gas(R22 OR 407C)
Clean filterCheck for clogging of air filter.
Use the booster cable.Long extension of ducts.
Refrigerantflow failure
Replace.Indoor coil sensor is defective.
Aircirculation isa little
Replace.4 way valve is defective.Cold air isdischarged
Replace P.C.B. Ass’y in the indoor unit.“STANDBY” is displayed.
Cold draftprevention ismal function
a)
M AIR CONDITIONER OPERATES, BUT ABNORMALITIES OCCUR
YES
Temperaturedifference is small
Temperature difference betweensuction and discharge air is largeenough (approx. 10°C or more).
Air filter is clogged
Change installation posit ion ofremote control unit.
Is remote control unit installed at aplace where it can detect roomtemperature properly!
b) Excessive cooling or heating
NO
45
INTER-UNITWIRING
OUTDOOR INDOORUNIT UNIT
N TROUBLESHOOTING COOLING MODEL
1) CHECK BEFORE AND AFTER “TROUBLESHOOTING”
a) Check power supply wiring.
• WARNING:If the following troubleshooting must be done with power being supplied, be careful about any uninsula-ted live part that can cause ELECTRIC SHOCK.
b) Check inter-unit wiring.
• Check that inter-unit wiring (both the power wiring and control wiring) is correctly connected to theindoor unit from the outdoor unit.
(c) Check power supply
• Check that voltage is in specified range (± 10% of the rating).• Check that power is being supplied
OUTDOOR INDOORUNIT UNIT
INTER-UNITWIRING
➀➁➂➃➄
➀➁➂➃
POWERSUPPLY
GROUND
ADR522CW - AE522SC
➀➁➂➃➄➅➆➇
POWERSUPPLY
GROUND
ADR522CW - AE522SC3ADR522CW - AER522SCL3
➀➁➂➃➄➅➆➇
L1
L2
L3
N
L1
L2
L3
N
400V400V
230V400V
L
N
230V
Single-phase systems Three-phase systems
POWER SUPPLY50 Hz - Single-phase220/230/240 V
POWER SUPPLY50 Hz - 3-phase 400V4 Wires
46
Air conditioner does not operate.
2) SYSTEMATIC CHART OF “TROUBLESHOOTING”
Circuit breaker trips (orfuse blows).
When circuit breaker isset to ON, it trips in afew moments.
Circuit breaker trips inseveral minutes afterturning air conditionerON.
Power is not supplied.
Check drain pump anddrain hose.
Function of compressorwinding protectionworks.
Indoor unit sensor aredefective.Open or short circuit.
Limit float switch hasoperated “OPEN”.
Check power supply.Neither indoor unit noroutdoor unit runs.
Measure insulationresistance of powersupply wires.
Check capacity of circuitbreaker. Meaure resi-stance of electrical com-ponents.
Reposition the indoorunit.
Indoor unit installed upsi-de - down.
47
3) AIR CONDITIONER DOES NOT OPERATE
(a) Circuit breaker trips (or fuse blows)• When circuit breaker is set to ON, it trips in a few moments. (Resetting is not possible).
• Measure insulation resistance there is a possibility of ground fault. If resistance value is 1MΩ or less,insulation is defective.
Circuitbreaker
Outdoorunit
12z45
Unitàesterna
xx34567
8
Unitàesterna
x xx x
x x
Indoorunit
12z45
Ground
Powersupply
Inter-uniwiring
a b c
d
Circuitbreaker
Outdoorunit
5 1678 2
z4
Unitàesterna
xxxx567
8
Unitàesterna
x xx x
x x
x x
Indoorunit
1
2z4
Ground
Powersypply
Inter-unitwiring
a b c
d
• Set circuit breaker to OFF.
Unitàesterna
L1L2L3N5678
z
z
ADR522CW - AE522SC
ADR522CW - AE522SC3ADR522CW- AER522SCL3
➀ Remove power supply wiresfrom terminal plate in outdoorunit.
• Measure insulation resistance ofpower supply wires.
Do rewiring
Do rewiring.
➁ Remove inter-unit wires fromterminal plate in outdoor unit.
• Measure insulation resistance ofoutdoor unit.
Insulation of outdoorunit is defective.
Measure insulation resi-stance of electrical parts inoutdoor unit.
Measure insulation resi-stance of electrical parts inindoor unit.
Insulation of indoor unitis defective.
➂ Remove inter-unit wires fromterminal plate in intdoor unit.
• Measure insulation resistance ofintdoor unit.
➃ Measure insulation resistance ofinter-unit wires.
OK
OK
YES
YES
48
(b) Circuit breaker trips in several minutes after turning air conditioner ON.
• There is a possibility of short circuit.
(c) Neither indoor unit nor outdoor unit runs
Leds of remote control unit are light
Check power supply.Is power being supplied to wallreceptacle?
Circuit breaker istripped.
Power failure.
Reset the breaker.
Wait for recovery or con-tact power company.
Replace it with suitable one.(larger capacity).
NO
Outdoor unitAE522SCAE522SC3/AER522SCL3 onlyMeasure coil resistance ofmagnetic contactor. (MG or52C)
OK
NO
YES
OK
Measure resistance of compressormotor winding.
Measure resistance of outdoor fanmotor winding.
Check capacity of circuit breaker.Capacity of circuit breaker is suita-ble?
NO
Check is drain flow prevented?
YES
Check if the drain pump is working.Measure resistance of drain pumpmotor winding.
Replace drain pump.
Check function of limit float switch.Float in high position: open circuit.Float in down position: short circuit.(Normal condition)
YES
Check installation of indoor unit isit installed upside - down?
Replace limit float switch.
Check drain hose.YES
NO
NO
Reposition the indoor unit.YES
49
(d) Check fuse on PCB Ass’y in indoor unit
Check fuse on PCB Ass’y inindoor unit for continuity. (F)
Measure resistance of indoorfan motor winding. (FMI)
Measure coil resistance of powerrelay or magnetic contactor in out-door unit. (PR - MG - 52C)
Measure resistance of drainpump winding.
PCB Ass’y in indoor unit is defecti-ve.
Measure resistance of pri-mary winding of transfor-mer. (TR)
If fuse blows, there is a possibility of short circuit.
OKOK
OK
e) Check transformer in indoor unit
Check whether transformere is detecti-ve.Measure resistance of primary andsecondary winding. (TR)
f) Check indoor fan motor protector
Wait for 30 minutes and then try to run.
Indoor fan motor internal protector trips.
Air conditioner starts running.
Air conditioner does not run again.
Check fan rotation. Turnfan gently once or twiceby hand.
Remove foreign matteror repair.
Check fan casing forforeign matter on inside.
Fan motor burnout orforeign matter in bearing.
Repair or replace.
Fan cannotbe turn ed
4) ONLY OUTDOOR UNIT DOES NOT RUN
a) Outdoor unit does not run when air conditioner is in following conditions.• During thermo OFF.• During freeze prevention (for at least 6 minutes).• During drain pump works (for at least 12 minutes).
b) PCB Ass’y in indoor unit is defective.
50
• Check magnetic contactor (only for AE522SC - AE522SC3 )
• Check coil resistance of magne-tic contactor. (52C or MG)
• Check negative phase relay (only for AER522SCL3 - AE522SC3)
5) COMPRESSOR MOTOR DOES NOT RUN (only for SAP AE522SC)
a) Single phase systems 2 30V - 1 - 50 Hz
OKIt has tripped
NO
NO
YES
• Refrigerant gas shortage.
• Check power supply voltage. Isvoltage abnormally low?
• Is outdoor heat exchanger coildirty or are there obstacles nearair suction inlet of outdoor unit?
• Check overload relay and/orcompressor motor internal pro-tector. (OLR - 49C)
• Measure resistance of compres-sor motor winding.
• Is temperature of compressorabnormally high?
• Check compressor motor capaci-tor. (C1)
YES
• Rewire power supply wires.
• Check negative phase relay tosee if it has operated. (47C)
51
b) Three - phase systems 400V - 3N - 50 Hz
• Measure resistance of compres-sor motor winding.
YES
Clean heat exchanger or removeobstacles.
Is outdoor heat exchanger coil dirtyor are there obstacles near air suc-tion inlet?
• Check compressor motor over-current relay (51C).
• Check power supply voltage. Isvoltage abnormally low?
• Check compressor.There is a possibility of lockedrotor.
Is temperature of compressorabnormally high?
Refrigerant gas shortage.
Charge refrigerant gas.
YES
YES
NO
It’s operated
NO90% or more ofrated voltage
R22 or R407C.
52
OK
Repair or repla-ce.
Fan motor burnout orforeign matter in bea-ring.
NO
NO
Replace capacitor.
Replace fan motor.
OK
Check fan motor capacitor.
Measure resistance of fan motorwinding.
OK
Check output of fan motor terminalson PCB Ass’y.
Fan cannotbe turnedCheck fan rotation. Turn fan gently
once or twice by hand.
1) ONLY INDOOR FAN DOES NOT RUN
Check fan casing forforeign matter on inside.
Remove foreignmatter or repair.
O SOME PARTS OF AIR CONDITIONER DO NOT OPERATE
Fan turnnormal
Repair or repla-ce.
Fan motor burnout orforeign matter in bea-ring.
OK
Measure the resistance of outdoorfan motor winding.
Check fan motor capacitor.
Fan cannotbe turned.Check fan rotation. Turn fan gently
once or twice by hand.
3) ONLY OUTDOOR FAN DOES NOT RUN
Check fan casing forforeign matter on inside.
Remove foreignmatter or repair.
Defrost controller (POW-C92 GH)is defective in outdoor unit.
2) FUNCTION OF OUTDOOR FAN SPEED CONTROL DOES NOT WORK PROPERLY(only for SAP-C 228E5 / SAP-C228E38)
• Check thermostat in outdoorunit. (23S)
• Check electronic fan speed regu-lator (SSR)
Only for low ambient versionunits (AER522SCL3)
53
POOR COOLING Check installation position of remo-te control unit.Does cool air from air conditionerreach position directly?
Is cooling load too large?
Change installation posit ion ofremote control unit.
Review cooling load estimate.
Charge refrigerant gas.
Open the valves fully.
Clean filter in the air intake grille.
Set the fan speed to either MEDIUMor HIGH.
Insulate wide and narrow tubesseparately.
Replace.Compressor is defective.
Service valves are not fully open.
Is fan speed set to LOW?
Refrigerant tubes between indoorand outdoor units are not insulated.
Air filter is clogged.
Measure temperatures ofsuction and discharge airof air conditioner.
Refrigerant gas shortage.
Possibil i ty ofgas shortage.
Charge refrige-rant gas (R22
Clean filterCheck for clogging of air filter.
Use the booster cable.Long extension of ducts.
Refrigerantflow failure
Air circula-tion is a little
a)
P AIR CONDITIONER OPERATES, BUT ABNORMALITIES OCCUR
YES
Temperature diffe-rence is small
Temperature difference betweensuction and discharge air is largeenough (approx. 10°C or more).
Air filter is clogged
Change installation position of remo-te control unit.
Is remote control unit installed at aplace where it can detect room tem-perature properly!
b) Excessive cooling
NO
OR R407C)
54
1) Measurement of Insulation Resistance
• The insuration is in good condition if the resistanceexceeds 1 MΩ.
(a) Power Supply Wires
Clamp the earthed wire of the power supply wireswith the lead clip of the insulation resistancetester and measure the resistance by placing aprobe on either of the power wires (Fig. 1).Then measure the resistance between theearthed wire and the other power wires (Fig. 1).
(b) Indoor Unit
Clamp an aluminium plate fin or copper tube withthe lead clip of the insulation resistance testerand measure the resistance by placing a probeon ➀ , and then ➁ on the terminal plate (Fig. 2).
(c) Outdoor Unit
Clamp a metallic part of the unit with the lead clipof the insulation resistance tester and measurethe resistance by placing a probe on ➀ , and then➁ on the terminal plate (Fig. 2).
(d) Measurement of Insulation Resistance forElectrical Parts
Disconnect the lead wires of the disired electricpart from terminal plate, PCB Ass’y, capacitor,etc.Similarly disconnect the connector. Thenmeasure the insuration resistance. (Fig. 1 to 4).Refer to Electric Wiring Diagram.
If the probe cannot enter the poles because thehole is too narrow then use a probe with a thinnerpin.
NOTE
QP CHECKING ELECTRICAL COMPONENTS
55
2) Checking Continuity of Fuse on PCB Ass’y
• Remove PCB Ass’y from electrical component box.Then pull out the fuse from PCB Ass’y (Fig. 5).
• Check continuity of fuse by the multimeter (Fig. 6).
3) Checking Motor Capacitor
Remove the lead wiers from the capacitorterminals, and then place a probe on the capacitorterminals as shown in Fig. 7. Observe thedeflection of the pointer, setting the resistancemeasuring range of the multimeter to themaximum value.The capacitor is “good” if the pointer bounces to agreat extent and then gradually returns to itsoriginal position.The range of deflection and deflection time defferaccording to capacity of the capacitor.
Prin
ted
in it
aly
Via Varese, 90 - 21013 Gallarate - Va - Italy
Tel. +39 0331 755111 - Fax +39 0331 776240
www.argoclima.it